Author: James B. Shearer
Date: 09:30:06 02/07/99
Go up one level in this thread
On February 05, 1999 at 17:58:27, Robert Hyatt wrote:
>On February 05, 1999 at 00:13:59, James B. Shearer wrote:
<snip>
>> time=120:00 cpu=99% mat=0 n=436256725 fh=4% nps=60589
>> ext-> checks=49824007 recaps=1196664 pawns=18327198 1rep=14431267
>> predicted=0 nodes=436256725 evals=82091710
>> endgame tablebase-> probes done=0 successful=0 maxd=32
>> hashing-> trans/ref=32% pawn=1% used=w99% b99%
>>White(41): quit
>>execution complete.
>
>
>this says something is wrong. pawn=1% means you are running about 1/2 the
>speed you normally should. Check the size of hashp as it is either bogus or
>something else is broken.
>
>fh=4% is impossible. That means that in only 4% of the nodes where the search
>fails high it fails high on the first move. The lowest value I have ever seen
>here is 88%, and it is normally above 90%. Is this a stock crafty, or one you
>compiled yourself? IE it is possible that the compiler is breaking something.
I am using wcrafty_16.3.exe downloaded from your site. I downloaded it
again and the copies were identical. I think hashp is ok, most positions pawn
is circa 95%. Is crafty supposed to be completely determinstic (except for
slight timing differences) on a 1-cpu system? I tried running the 2 hour search
again and the results were a bit different. The moves were the same (with
similar times) but the summary block became:
time=122:22 cpu=99% mat=0 n=209963723 fh=89% nps=28595
ext-> checks=21642959 recaps=582085 pawns=10695067 1rep=7462442
predicted=0 nodes=209963723 evals=34605063
endgame tablebase-> probes done=0 successful=0 maxd=32
hashing-> trans/ref=33% pawn=10% used=w99% b99%
James B. Shearer
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